Support adoption.
However I think while the draft is an interesting reading the crux of
the issue may/should be really in fixing the PMTU to the extend that if
I peer to N routers I should be able to tell exactly what the max path
MTU is by automation .. and not by guessing or calling the IX NOC or
worse remote peers.
Draft says:
10.1. PMTU (Path MTU) issues
The IP protocol has two Path MTU Discovery (PMTU) mechanisms to
handle packets traveling along a path with varying MTU values for
various links in the path.
The IPv4 Path MTU Discovery protocol, RFC 1191 [RFC1191], is
considered often NOT to work. See RFC 2923 [RFC2923] [SAUVER2003].
In IPv6, Path MTU Discovery protocol, RFC 1981 [RFC1981], is
considered to work.
However neither the IPv4 or IPv6 PMTU methods will work if the layer
2 fabric has a mismatched value.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
I think we really need to have a way to determine PMTU in the cases of
switch in the middle having a mismatched value.
Best regards,
R.
Support adoption. I think that the appropriate way to discuss this
without stepping on IEEE feet is exactly this sort of document, which
simply recommends a tacit agreement among folks who are already
likely violating IEEE "law" on the matter that they'll all violate it
in the same way, and covers the operational considerations both of
implementing/migrating and of deviating from the official 1500
limit.
Thanks,
Wes
-----Original Message----- From: [email protected]
[mailto:[email protected]] On Behalf Of Christopher Morrow
Sent: Thursday, November 17, 2011 3:11 AM To:
[email protected]; [email protected] [email protected]; Martin J.
Levy Subject: [GROW] WG Adoption call for:
draft-mlevy-ixp-jumboframes
Given the discussion in the room today, and the current doc:
<http://tools.ietf.org/html/draft-mlevy-ixp-jumboframes-00>
can we get a poll on the adoption for this document in GROW, is
this work that GROW should pursue?
Call closes 12/01/2011 (Dec 01 2011 for our non-us-participants)
-chris (co-chair) _______________________________________________
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